Depending on what your document looks like, it might be easiest to import into Design Studio as a PDF. You can see how to do this here:https://docs.marketo.com/display/public/DOCS/...
I think you're referencing Person and Company Tokens. Within your email editor, you can select the "..." icon to add the person and company values into your email. TheToken Overvie...
Dave Palmer, yes you can use any Person Tokens in your email subject line. Here is a more detailed Token Overviewthat digs into the different Token types and where they're availab...